金属热处理 ›› 2023, Vol. 48 ›› Issue (12): 56-59.DOI: 10.13251/j.issn.0254-6051.2023.12.008

• 工艺研究 • 上一篇    下一篇

固溶处理对Ti-14Al-10Nb合金组织及摩擦磨损性能的影响

秦春1,2, 段昊灼3, 李伟3   

  1. 1.北方民族大学 机电工程学院, 宁夏 银川 750021;
    2.宁夏回族自治区复合制造系统工程技术研究中心, 宁夏 银川 750021;
    3.北方民族大学 材料科学与工程学院, 宁夏 银川 750021
  • 收稿日期:2023-07-06 修回日期:2023-10-05 出版日期:2023-12-25 发布日期:2024-01-29
  • 作者简介:秦 春(1987—),男,副教授,博士,主要研究方向为钛合金变形工艺及组织性能关系,E-mail:qinchun0131@163.com
  • 基金资助:
    宁夏自然科学基金(2022AAC03276);国家自然科学基金(51804011);北方民族大学高层次人才项目(2019BGGZ04)

Effect of solution treatment on microstructure and friction and wear properties of Ti-14Al-10Nb alloy

Qin Chun1,2, Duan Haozhuo3, Li Wei3   

  1. 1. School of Mechanical and Electrical Engineering, North Minzu University, Yinchuan Ningxia 750021, China;
    2. Ningxia Engineering Research Center for Hybrid Manufacturing System, Yinchuan Ningxia 750021, China;
    3. School of Materials Science and Engineering, North Minzu University, Yinchuan Ningxia 750021, China
  • Received:2023-07-06 Revised:2023-10-05 Online:2023-12-25 Published:2024-01-29

摘要: 研究了固溶处理对Ti-14Al-10Nb合金显微组织和摩擦磨损性能的影响规律。结果表明,锻态Ti-14Al-10Nb合金的显微组织由α2相和β相组成,其中α2相呈细小、弯曲的棒状形态。固溶温度的升高促进了显微组织中α2相向β相的转变,导致α2相的含量减少,同时棒状α2相的形态逐渐粗化。锻态Ti-14Al-10Nb合金的摩擦因数及磨损量均小于经固溶处理后试样,表明锻态时合金的耐磨性较好;而且随着固溶温度的升高,α2相溶解程度增加,合金耐磨性随之下降。Ti-14Al-10Nb合金主要磨损形式为磨粒磨损和氧化磨损。

关键词: Ti-14Al-10Nb合金, 热处理, 显微组织, 摩擦磨损性能

Abstract: Effect of solution treatment on the microstructure and friction and wear properties of Ti-14Al-10Nb alloy was investigated. The results show that the microstructure of the as-forged Ti-14Al-10Nb alloy is composed of α2 and β phases, with the α2 phase in a fine, curved rod-like form. The increase of solution temperature promotes the transformation of α2 phase to β phase, resulting in a decrease in the content of α2 phase and a gradual coarsening of the rod-like α2 phase morphology. The friction coefficient and wear mass loss of the as-forged Ti-14Al-10Nb alloy are smaller than those of the solution treated specimens, indicating that the wear resistance of the alloy is better in the forged state. The wear resistance of the alloy decreases as the dissolution of the α2 phase increases with the increase of solution temperature. The main forms of wear of the Ti-14Al-10Nb alloy are abrasive wear and oxidation wear.

Key words: Ti-14Al-10Nb alloy, heat treatment, microstructure, friction and wear properties

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